放映银幕特性参数和测定方法
Characteristic parameter and measurement of projection screens
2015-12-10
DIN 19045-4
Projection of still pictures and motion-pictures - Part 4: Reflection and transmittance characteristics of screens; characteristic values, screen types, measurement
静止图像和电影的投影.第4部分:屏幕的反射和透射特性；特征值、屏幕类型、测量